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#include <stdio.h>
#include <openacc.h>
#include <gomp-constants.h>
#define N (32*32*32+17)
#pragma acc routine worker
void __attribute__ ((noinline)) worker (int ary[N])
{
#pragma acc loop worker
for (unsigned ix = 0; ix < N; ix++)
{
if (acc_on_device (acc_device_not_host))
{
int g, w, v;
g = __builtin_goacc_parlevel_id (GOMP_DIM_GANG);
w = __builtin_goacc_parlevel_id (GOMP_DIM_WORKER);
v = __builtin_goacc_parlevel_id (GOMP_DIM_VECTOR);
ary[ix] = (g << 16) | (w << 8) | v;
}
else
ary[ix] = ix;
}
}
int main ()
{
int ary[N];
int ix;
int exit = 0;
int ondev = 0;
for (ix = 0; ix < N;ix++)
ary[ix] = -1;
#pragma acc parallel num_workers(32) vector_length(32) copy(ary) copy(ondev)
{
ondev = acc_on_device (acc_device_not_host);
worker (ary);
}
for (ix = 0; ix < N; ix++)
{
int expected = ix;
if(ondev)
{
int g = 0;
int w = ix % 32;
int v = 0;
expected = (g << 16) | (w << 8) | v;
}
if (ary[ix] != expected)
{
exit = 1;
printf ("ary[%d]=%x expected %x\n", ix, ary[ix], expected);
}
}
return exit;
}
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